Patents by Inventor O. William Lever, Jr.

O. William Lever, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20080299176
    Abstract: A drug delivery device for placement in the eye includes a drug core comprising a hydrophobic pharmaceutically active agent, and a holder that holds the drug core. The holder is made of a material impermeable to passage of the active agent and includes an opening for passage of the pharmaceutically agent therethrough to eye tissue. The device includes polyurethane-siloxane-containing copolymers crosslinked with hydrophilic monomers.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 4, 2008
    Inventors: Yu-Chin Lai, Ruiwen Shi, O. William Lever, JR., Dominic V. Ruscio, Yan Huang
  • Patent number: 7087222
    Abstract: A method for improving the integrity of the corneal epithelium by introducing into the eye an effective amount of a ophthalmically compatible retinoid sufficient to enhance the integrity of the corneal epithelium.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: August 8, 2006
    Assignee: Bausch & Lomb Incorporated
    Inventors: Andrea M. Lever, Richard V. Smerbeck, O. William Lever, Jr., Joseph C. Salamone
  • Patent number: 6787131
    Abstract: A method for improving the integrity of the corneal epithelium by introducing into the eye an effective amount of a ophthalmically compatible retinoid sufficient to enhance the integrity of the corneal epithelium.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: September 7, 2004
    Assignee: Bausch & Lomb Incorporated
    Inventors: Andrea M. Lever, Richard V. Smerbeck, O. William Lever, Jr., Joseph C. Salamone
  • Patent number: 5965088
    Abstract: The present invention is directed to method of disinfecting a contact lens with an ophthalmically safe disinfecting aqueous solution comprising about 2.0 to about 8.0 ppm of a bis(biguanide) having the following formula: ##STR1## wherein R.sup.1 and R.sup.4 are independently selected from the group consisting of branched or unbranched alkyl having 4-12 carbon atoms, ether or thioether radical having 4-12 carbon atoms, or cycloalkyl or cycloalkyl-alky radical having 5-12 carbon atoms; R.sup.2 and R.sup.3 are independently selected from the group consisting of hydrogen, alkyl having 1-12 carbon atoms, alkoxyalkyl having 1-12 carbon atoms, or cycloalkyl or cycloalkyl-alkyl having 5-12, carbon atoms; R.sup.6 and R.sup.7 are independently selected from the group consisting of hydrogen and alkyl radical having 1-6 carbon atoms, and A in the above formula is selected from the group consisting of a divalent alkyl, alkyloxyalkyl, or alkylsufide radical each having 4-12 carbon atoms.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: October 12, 1999
    Inventors: Andrea M. Lever, O. William Lever, Jr.
  • Patent number: 5895645
    Abstract: An ophthalmic artificial tear solution is described for treating irritation and dryness of the eyes with a formulation that includes polyvinylpyrrolidone, a preservative such as benzalkonium chloride, glycerin and hydroxypropyl methylcellulose, wherein the composition is an aqueous solution having isotonic properties with respect to the eye. The ophthalmic solution of the invention is characterized as having a low viscosity, preferably less than 5 cps, and a low surface tension, preferably less than 40 dynes/cm, wherein wettability, retainability and comfort of the user are enhanced.
    Type: Grant
    Filed: August 14, 1996
    Date of Patent: April 20, 1999
    Assignee: Bausch & Lomb Incorporated
    Inventors: Henry P. Dabrowski, Anil Salpekar, O. William Lever, Jr.
  • Patent number: 5591426
    Abstract: An ophthalmic artificial tear solution is described for treating irritation and dryness of the eyes with a formulation that includes polyvinylpyrrolidone, a preservative such as benzalkonium chloride, glycerin and hydroxypropyl methylcellulose, wherein the composition is an aqueous solution having isotonic properties with respect to the eye. The ophthalmic solution of the invention is characterized as having a low viscosity, preferably less than 5 cps, and a low surface tension, preferably less than 40 dynes/cm, wherein wettability, retainability and comfort of the user are enhanced.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: January 7, 1997
    Assignee: Bausch & Lomb Incorporated
    Inventors: Henry P. Dabrowski, Anil Salpekar, O. William Lever, Jr.
  • Patent number: 4923892
    Abstract: The present invention relates to compounds of formula I ##STR1## or a salt, ester or amide thereof; wherein R.sup.1 is --CH.sub.2 --CH.sub.2 --, CH.sub.2 --O-- or --O--CH.sub.2 --; R.sup.2 and R.sup.3 are the same or different and are each hydrogen, C.sub.1-4 alkyl or taken together with the nitrogen comprise a nitrogen-containing heterocyclic ring having four to six ring members; R.sup.4 is a single bond or a C.sub.1-7 bivalent aliphatic hydrocarbon group and may be joined to the aromatic ring system at the 2,3,8 or 9 positions; n is 0 to 3, and their use as antihistamine and antiasthma agents.
    Type: Grant
    Filed: May 23, 1989
    Date of Patent: May 8, 1990
    Assignee: Burroughs Wellcome Co.
    Inventors: O. William Lever, Jr., Harry J. Leighton
  • Patent number: 4880817
    Abstract: O-functional derivatives of substituted isoquinolin-3-ol compounds of the general formula ##STR1## that exhibit cardiotonic and/or phosphodiesterase fraction III inhibiting properties and/or renal vasodilating are pharmacologically active in the treatment of cardiac conditions. Methods for synthesizing and using the compounds are described.
    Type: Grant
    Filed: June 9, 1987
    Date of Patent: November 14, 1989
    Assignee: Ortho Pharmaceutical Corporation
    Inventors: Ramesh M. Kanojia, O. William Lever, Jr., Jeffery B. Press
  • Patent number: 4871865
    Abstract: The present invention relates to compounds of formula I ##STR1## or a salt, ester or amide thereof; wherein R.sup.1 is --CH.sub.2 --CH.sub.2 --, CH.sub.2 --O-- or --O--CH.sub.2 --; R.sup.2 and R.sup.3 are the same or different and are each hydrogen, C.sub.1-4 alkyl or taken together with the nitrogen comprise a nitrogen-containing heterocyclic ring having four to six ring members; R.sup.4 is a single bond or a C.sub.1-7 bivalent aliphatic hydrocarbon group and may be joined to the aromatic ring system at the 2,3,8 or 9 positions; n is 0 to 3, and their use as anithistamine and antiasthma agents.
    Type: Grant
    Filed: August 7, 1986
    Date of Patent: October 3, 1989
    Assignee: Burroughs Wellcome Co.
    Inventors: O. William Lever, Jr., Harry J. Leighton
  • Patent number: 4843077
    Abstract: Isoquinoline derivatives of compounds of the general formula ##STR1## that exhibit cardiotonic and/or phosphodiesterase fraction III inhibiting properties and/or renal vasodilating are pharmacologically active in the treatment of cardiac conditions. Methods for synthesizing and using the compounds are described.
    Type: Grant
    Filed: June 9, 1987
    Date of Patent: June 27, 1989
    Assignee: Ortho Pharmaceutical Corporation
    Inventors: Jeffery S. Hinkle, O. William Lever, Jr.